000 AXPZ20 KNHC 090233 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Sat Apr 9 2022 Tropical Weather Discussion for the eastern Pacific Ocean from 03.4S to 30N, east of 120W including the Gulf of California, and from the Equator to 30N, between 120W and 140W. The following information is based on satellite imagery, weather observations, radar, and meteorological analysis. Based on 0000 UTC surface analysis and satellite imagery through 0230 UTC. ...SPECIAL FEATURES... The pressure gradient between high pressure over the western Gulf of Mexico and the equatorial trough is supporting a gale- force gap wind event in the Gulf of Tehuantepec. Winds are currently peaking near 40 kt, with seas to 15 ft. On Sat, the area of high pressure will start to shift eastward. This will loosen the gradient across the Tehuantepec region, and veer winds over the western Gulf of Mexico. This will diminish winds below gale force by Sat evening. Winds and seas will continue to decrease through Sun. Seas generated from this gale- force gap wind event will spread far from the Tehuantepec region, with seas greater than 8 ft reaching as far west as 105W on Saturday. Please read the latest NWS High Seas Forecast issued by the National Hurricane Center at the website https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 08N78W to 06N82W to 06N97W. The ITCZ continues from 06N97W to 08N116W. It resumes from 06N124W to 06N140W. Scattered moderate isolated strong convection is noted from 03N to 08N east of 95W, from 04N to 10N between 110W and 125W, and from 04N to 10N between 135W and 140W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO Please refer to the Special Features for details on the ongoing gale- force gap wind event in the Gulf of Tehuantepec. Aside from the Gulf of Tehuantepec, gentle to moderate winds prevail west of Baja California Norte and the Gulf of California. Light to gentle winds prevail elsewhere. Seas are in the 5-7 ft range over the open offshore waters off Mexico, and 1-3 ft over the Gulf of California. For the forecast, the gale- force winds in the Gulf of Tehuantepec will continue through Sat before diminishing. A set of northerly swell will enter the waters off Baja California Norte on Sat. This swell will spread across the waters west of the Baja California peninsula through the weekend into early next week. Fresh to strong winds over the Gulf of California will develop Sat and continue into Sun, before diminishing late Sun. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR Moderate to locally fresh easterly winds prevail over the Gulf of Papagayo and the Gulf of Panama. Light to gentle winds prevail elsewhere. Seas are in the 4-6 ft range. For the forecast, fresh to strong trades will develop in the Papagayo region tonight and continue into next week. Mainly light to gentle winds are expected over the rest of the offshore waters through the end of the week, pulsing to moderate to fresh in the Gulf of Panama this weekend into early next week. NW swell associated with a gale- force gap wind event in the Tehuantepec region will propagate into the northern waters late Sat. Seas elsewhere will be mainly driven by a moderate S to SW swell. REMAINDER OF THE AREA High pressure of 1041 mb is centered north of the area near 39N141W. The pressure gradient between this area of high pressure and troughing west of the Gulf of California is supporting fresh to strong winds over the waters north of 25N and west of 130W. Seas in the 8-11 ft range prevail over this area. Moderate to fresh trade winds are elsewhere north of the ITCZ and west of 130W, with gentle to moderate winds prevailing elsewhere. Seas are in the 6-8 ft range. For the forecast, the area of fresh to strong winds will continue to spread primarily eastward through the weekend, with associated seas peaking near 14 ft N of 25N this weekend. $$ AL